This HiRISE image shows an exposure of bedrock on the floor of Bakhuysen Crater, a 150-kilometer diameter impact crater in Noachis Terra. The bedrock is highly fragmented and fractured. The distinct false-color in the image may indicate that the tan-colored, fractured bedrock may have been altered in the presence of water.
The location of this bedrock and context of its surroundings give us significant clues to the possible water-involved origin of these materials. Numerous channels are carved into the rim of the crater. At this particular location… [More at link]